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from ConfigParser import SafeConfigParser

# This dequote() business is required for some older versions
# of mysql_config

def dequote(s):
    if s[0] in "\"'" and s[0] == s[-1]:
        s = s[1:-1]
    return s

def compiler_flag(f):
    return "-%s" % f

def mysql_config(what):
    from os import popen

    f = popen("%s --%s" % (mysql_config.path, what))
    data = f.read().strip().split()
    ret = f.close()
    if ret:
        if ret/256:
            data = []
        if ret/256 > 1:
            raise EnvironmentError("%s not found" % (mysql_config.path,))
    return data
mysql_config.path = "mysql_config"

def get_config():
    import os, sys
    from setup_common import get_metadata_and_options, enabled, create_release_file

    metadata, options = get_metadata_and_options()

    if 'mysql_config' in options:
        mysql_config.path = options['mysql_config']

    extra_objects = []
    static = enabled(options, 'static')
    if enabled(options, 'embedded'):
        libs = mysql_config("libmysqld-libs")
        client = "mysqld"
    elif enabled(options, 'threadsafe'):
        libs = mysql_config("libs_r")
        client = "mysqlclient_r"
        if not libs:
            libs = mysql_config("libs")
            client = "mysqlclient"
    else:
        libs = mysql_config("libs")
        client = "mysqlclient"

    library_dirs = [ dequote(i[2:]) for i in libs if i.startswith(compiler_flag("L")) ]
    libraries = [ dequote(i[2:]) for i in libs if i.startswith(compiler_flag("l")) ]

    removable_compile_args = [ compiler_flag(f) for f in "ILl" ]
    extra_compile_args = [ i.replace("%", "%%") for i in mysql_config("cflags")
                           if i[:2] not in removable_compile_args ]
    include_dirs = [ dequote(i[2:])
                     for i in mysql_config('include')
                     if i.startswith(compiler_flag('I')) ]
    if not include_dirs: # fix for MySQL-3.23
        include_dirs = [ dequote(i[2:])
                         for i in mysql_config('cflags')
                         if i.startswith(compiler_flag('I')) ]

    if static:
        extra_objects.append(os.path.join(
            library_dirs[0],'lib%s.a' % client))

    name = "MySQL-python"
    if enabled(options, 'embedded'):
        name = name + "-embedded"
    metadata['name'] = name

    define_macros = [
        ('version_info', metadata['version_info']),
        ('__version__', metadata['version']),
        ]
    create_release_file(metadata)
    del metadata['version_info']
    ext_options = dict(
        name = "_mysql",
        library_dirs = library_dirs,
        libraries = libraries,
        extra_compile_args = extra_compile_args,
        include_dirs = include_dirs,
        extra_objects = extra_objects,
        define_macros = define_macros,
        )
    return metadata, ext_options

if __name__ == "__main__":
    print """You shouldn't be running this directly; it is used by setup.py."""
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